Liu, L.-C. (1984) “Different Irrigation Regimes Influence Phytotoxicity of Prometryn to Pigeon Peas [Cajanus cajan (L.) Millsp.] in Four Soils”, The Journal of Agriculture of the University of Puerto Rico, 68(4), pp. 315–321. doi: 10.46429/jaupr.v68i4.7298.